cómo se halla la media aritmética​

Answers

Answer 1

Answer:La media aritmética es la suma de todos los datos dividida entre el número total de datos :)


Related Questions

Tamia has four more coins in her collection than Troy. The number of coins in Troy's collection is two raised to the power of eight. Enter the missing part of the numerical expression that represents the number of coins in Tamia's collection. □+28

Answers

Answer:68

Step-by-step explanation: 8 x 8 = 64

4 more, 68

Find the measure of each angle in the isosceles trapezoid WXYZ.

Answers

Answer:

Given each largest angle is x, then the other angles are x, x, 180 -x, 180 - x

This is because of the properties of isosceles triangle

Behind my math class help pls

Answers

Answer:

Please check the explanation.

Step-by-step explanation:

Part a)

Given that the two parallel lines are crossed by a transversal line.

Given that

m∠2 = 2x + 54 and m∠6 = 6x - 11

Angle ∠2 and ∠6 are corresponding angles.

Corresponding angles are congruent.

Thus,

m∠2 = m∠6

2x + 54 = 6x - 11

flipe the equation

6x - 11 = 2x + 54

subtract 2x from both sides

6x - 2x - 11 = 2x - 2x + 54

4x - 11 = 54

adding 11 to both sides

4x - 11 + 11 = 54 + 11

4x = 65

dvide both sides by 4

4x/4 = 65/4

x = 16.2500    (round to 4 decimal places)

Part b)

We have already determined

x = 16.2500

Given

m∠2 = 2x + 54

substitute x = 16.2500 in the euation

        = 2(16.2500) + 54

        = 86.5°

As angle ∠2 and angle ∠1 lie on a straight line. Hence, the sum of their angles must be 180°.

i.e.

m∠1 + m∠2 = 180°

substituting m∠2 =  86.5° in the equation

m∠1 + 86.5°  = 180°

subtracting 86.5° from both sides

m∠1 + 86.5° - 86.5° = 180° - 86.5°

m∠1 = 93.5°

Therefore, the measure of angle m∠1 is:

m∠1 = 93.5°

The equation
5
w
+
16
=
61
models how many weeks,
w
, it takes a puppy to reach a weight of
61
ounces after being born. If the puppy gains the same amount of weight each week, how many weeks does it take the puppy to reach
61
ounces?

Answers

Answer:

9 weeks

Step-by-step explanation:

5w+16=61

Subtract 16 from both sides of the above equation.

5w+16-16=61-16

5w = 45

w = 9

How do I solve for x?

Answers

i don't know

Step-by-step explanation:

how, help us HHAHAHAHAHAHAHAHHAHAHAHHAA

Triangle LMN has L at (1, -1) and M at (2, 3). Triangle L'M'N' has L' at (-1, -1), M' at (3, -2), and N' is at (-3, 0). What are the coordinates of vertex N?
N (3, 0)

N (0, 0)

N (0, 3)

N (0, -3)

Answers

Answer:

The answer is N(0,-3)

what is 3x + 7.9 = 9.1

Answers

Answer:

= 0 . 4

Step-by-step explanation:

Answer:

Please refer to the attachment above

Hope it helps

Find x
16 ft
х
12 ft

Answers

Answer:

x = 20

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

x² = 12² + 16² = 144 + 256 = 400 ( take the square root of both sides )

x = [tex]\sqrt{400}[/tex] = 20

Joe would like to paint a rectangular shaped wall. The measures of dimensions of the wall are 8 inches by 4 inches. Every 1 inch represents 3 feet of the actual wall. If the cost of the painting is $2.50 per square feet, find the total cost of paint needed for the entire wall.

Answers

Answer:

$90

Step-by-step explanation:

8 + 4 = 12

12 x 3 (3 feet for each inch) = 36

36 x 2.50 (cost per square foot) = $90

Answer:

$240

Step-by-step explanation:

8 x 4 is 32

32 x 3 is 96

96 x 2.5 is 240

Read the passage and answer the question that follows.


Teachers should really think about the amount of math homework they assign to their students. All types of learners hate homework. If a student already knows how to work the math, why do they need to practice it over and over? And, students who don’t “get it” in class end up practicing incorrectly over and over, leading to an extreme dislike for school. I think requiring just a few practice problems is more appropriate for students.


How could the author revise the hasty generalizations?


o Suggest that teachers do not know what is best for students.

o Use more emotional language, so the reader feels something strongly.

o Offer suggestions for helping students who struggle in math.

o Quote a friend who enjoys math and another friend who likes it less.

Answers

Answer: It’s A. Quote a friend who enjoys math and another friend who likes it less.

Step-by-step explanation:

Answer:

Its A

Step-by-step explanation:

Person above me got it correct (Right on Edge) Give him brainliest

The aspect ratio, the ratio of the width to the height, of various computer monitors is listed in the table below.​

Answers

Answer: Monitor C is the different one.

Step-by-step explanation:

The aspect ratio is the relationship between width and height.

So we only need to see the quotients between width and height for each monitor and see which quotient is different.

Monitor A:  

Quotient = 1152/864 = 1.333....

Monitor B:

Quotient = 800/600 = 1.333...

Monitor C:

Quotient = 1920/1080 = 1.777...

Monitor D:

Quotient = 1600/1200 = 1.333...

We can see that the one with a different aspect ratio is monitor C.

The amount charged for an item above the cost

Answers

Answer:

markup

Step-by-step explanation:

why doesn't an elephant smoke?

Answers

Answer:

Because it can't

Step-by-step explanation:

Answer:

i dont know, y does it smoke?

Step-by-step explanation:

WILL GIVE BRAINLIEST!
Consider the following.
a number added to the difference between triple the number and thirteen

Answers

Answer:

Use x for your variable. Do not simplify

Step-by-step explanation:

Answer: Soooo-----    x+(3x-13)

Step-by-step explanation:

So in this case i used x as number. Since we're not solving for anything this is just an expression. so the difference between triple the number so 3x and thirteen so (3x-13) and (a number) added so x+(3x-13) or number added to the difference between triple the number and thirteen

What was the total amount of water in the tank before it was drained

450 gallons

510 gallons

560 gallons

570 gallons​

Answers

The answer is 560 gallons

Total amount of water before it was drained will be 510 gallons.

What is rate?

"It is a ratio in which the two terms being compared have different units."

For given question,

We have been given  a table for  the number of gallons of water left in the tank after being drained for two amounts of time.

First we find the rate at which the water was drained from the tank.

[tex]r=\frac{450-330}{30-10}\\\\ r=\frac{120}{20}\\\\ r=6~gallons~per~minutes[/tex]

Let the amount of water in the tank before it was drained = 'x' gallons

And the initial time = 0

Using the rate formula,

[tex]r=\frac{x-450}{10-0}\\\\ 6=\frac{x-450}{10}\\\\ 60=x-450\\\\x=450+60\\\\x=510~gallons[/tex]

Therefore, total amount of water before it was drained will be 510 gallons.

Learn more about rate here:

https://brainly.com/question/23634231

#SPJ2

:
Jeremy has hit 5 home runs so
far this season. This represents
20% of his yearly goal. How many
more homeruns does he need to hit
to achieve his goal?

Answers

Answer:

20 home runs left to hit.

Step-by-step explanation:

Ok so 100%/20% is 5. Increment 5 home runs until you get to 100%. So, 20% =5, 40% = 10, 80% = 15, and 100% = 20

Answer: 25 home runs

Step-by-step explanation:

20% = 5

40% = 10

80% = 20

80% + 20% = 100%

5+10=25

How do I find the value of x?

Answers

Answer:

2[tex]\sqrt{3}[/tex]

Step-by-step explanation:

tan = opp/adj

tan(30) = x/6         ** multiply by 6 on both sides

6tan(30) = x

[tex]2\sqrt{3}[/tex] = x

a new computer comapny has its sales increasing by 3% each week. A second computer company has its sales decreasing by $100 each day. the first company had $500 in sales when the second company had $7000 in sales. after approximately how many weeks will the sales for the two companies be the same?
A. 9
B. 13
C. 49
D. 63

Answers

Answer:

49

Step-by-step explanation:

1). What must you do in order to solve the equation?
15 = m - 5

Answers

Answer:

20

Step-by-step explanation:

15 + 5= 20

Answer:

carry across the-5

minus turns into a +

looks like this

+5+15=m

Without using a calculator, order the following numbers from least to greatest.
9
8
(Square root sign)72

Answers

8, (square root) 72, 9

5) If an item costs $500 and is on sale at 15% off and sales tax on the item is 8% find the cost after the
discount has been taken off and the tax has been added.

Answers

answer is 459 dollars

explanation: 15% of 500 is 75 that =425 + the tax which is 34 dollars so add them to get the answer 459

Find the value of x in the triangle shown below

Answers

Answer:

x = 55

Step-by-step explanation:

Since 2 sides of the triangle are congruent, both 5, then the triangle is isosceles and the 2 base angles are congruent, both x , then

x + x + 70 = 180 ← sum of 3 angles = 180°

2x + 70 = 180 ( subtract 70 from both sides )

2x = 110 ( divide both sides by 2 )

x = 55

Answer:

55.52

Step-by-step explanation:

By sine rule:

[tex] \frac{ \sin x \degree}{5} = \frac{ \sin 70 \degree}{5.7} \\ \\ \sin x \degree = \frac{ 5 \: \sin 70 \degree}{5.7} \\ \\ \sin x \degree = \frac{ 5 \: \sin 70 \degree}{5.7} \\ \\ x \degree = {sin}^{ - 1} ( \frac{ 5 \: \sin 70 \degree}{5.7}) \\ \\ x \degree = 55.516753493 \degree\\ \\ x = 55.52[/tex]

Cora read one sixth of her book on day one. She read one fourth of her
book on day two. What fraction of her book did she read in two days?

Answers

Answer:

[tex]\frac{5}{12}[/tex]

Step-by-step explanation:

[tex]\frac{1}{6}[/tex] + [tex]\frac{1}{4}[/tex] =  finding common denominator which is 12.   so multiply both sides  with what makes them 12 ...... [tex]\frac{1}{6}[/tex]  [tex]\frac{2}{2}[/tex]    & [tex]\frac{1}{4}[/tex][tex]\frac{3}{3}[/tex]  then add = [tex]\frac{5}{12}[/tex]

The answer is 5/12 your welcome !

You deposit $400 in an account. The account earns $72 simple interest in 6 years. What is the annual interest rate?

Answers

Answer:

3% annually

Step-by-step explanation:

Answer:

3%

Step-by-step explanation:

I know this becaus the teacher helped me

Two ways you can solve the following equation : 20 = 5(-3+x)

Answers

Answer:

x=7

Step-by-step explanation:

Answer:

Step-by-step explanation:

Method one:

You divide both sides by 5 and get

4= -3+x

7=x

Method 2:

You can distribute the 5

20= -15+5x

35=5x

x=7

Graph 2.4 on the number line. Please.

Answers

Answer:

It is the second line after 2. the number line goes up in 0.2

Step-by-step explanation:

For which inequality is .r = 5 a solution?
А х<2
в. х> 9
ОО
) с. х< 18
OD. x> 42

Answers

Answer:

The answer is C x<18 indirectly saying 5<18 the other options has no match for it

The school store has 2400 pencils in stock and sells an average of 20 pencils per day. The manager reorders when the the number of pencils in stock is 600.

Answers

Answer:

90 days until the next restock

Step-by-step explanation:

2400 - 600 = 1800

1800/20 = 90 days

Eva and Jimmy share and amount of money in the ratio of 8:5 Eva gets 21 more than Jenny. How much do they get each

Answers

Answer:

Eva:$56

Jimmy/Jenny:$35

Step-by-step explanation:

diff->8-5=3

3u->$21

1u->$21÷3=$7

Eva->$7×8=$56

Jimmy/Jenny->$7×5=$35

Triangle Theorem ( sss, sas, asa )

Answers

Answer:

A.) SSS

B.) HL

C.) SAS

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